Practice Test Geeks(COA) Certified OpenStack Administrator Exam Practice Test
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Monitoring & Reporting Tools Flashcards

7 cards from real COA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. Which OpenStack project provides rating-as-a-service, calculating costs for resource usage?

    Answer: Cloudkitty

    Cloudkitty is the OpenStack rating-as-a-service project that calculates costs for resource usage based on configurable rating rules.

  2. In the context of OpenStack monitoring, what is the purpose of the 'os-collect-config' tool?

    Answer: It collects configuration metadata from the metadata API for Heat-managed instances

    os-collect-config runs on instances managed by Heat, collecting configuration metadata from sources like the metadata API and applying configuration changes.

  3. Which command displays Nova hypervisor statistics useful for capacity monitoring?

    Answer: openstack hypervisor stats show

    The 'openstack hypervisor stats show' command displays aggregated statistics (vCPUs, memory, disk) across all compute hypervisors.

  4. What does the 'openstack usage show' command report for a given project?

    Answer: CPU hours, memory MB-hours, and disk GB-hours consumed during a time period

    The 'openstack usage show' command reports compute usage statistics including CPU hours, memory MB-hours, and disk GB-hours for a project over a time range.

  5. Which file format does Ceilometer use for its polling configuration to define which meters to collect?

    Answer: YAML

    Ceilometer uses YAML format for its polling.yaml configuration file, which defines the namespaces and meters to be collected.

  6. What is the default message bus used by Ceilometer to receive notifications from other OpenStack services?

    Answer: RabbitMQ (via oslo.messaging)

    Ceilometer uses oslo.messaging with RabbitMQ (by default) to receive notification events from Nova, Cinder, Neutron, and other OpenStack services.

  7. Which Gnocchi CLI command retrieves metric measurements for a specific resource between two timestamps?

    Answer: openstack metric measures show --start --stop

    The 'openstack metric measures show --start --stop ' command retrieves time-series measurements for a Gnocchi metric within the specified time range.